diff --git a/.github/workflows/actions.lock b/.github/workflows/actions.lock
index 04c24b5..3592964 100644
--- a/.github/workflows/actions.lock
+++ b/.github/workflows/actions.lock
@@ -27,10 +27,7 @@ workflows:
     '.github/workflows/push-email-notify.yml':
         - 'hyperpolymath/smtp-notify-action@v0.2.0'
     '.github/workflows/scorecard.yml': []
-    '.github/workflows/secret-scanner.yml':
-        - 'actions/checkout@v6.0.2'
-        - 'gitleaks/gitleaks-action@v2.3.9'
-        - 'trufflesecurity/trufflehog@v3.93.8'
+    '.github/workflows/secret-scanner.yml': []
     '.github/workflows/workflow-linter.yml':
         - 'actions/checkout@v4.1.1'
 dependencies:
diff --git a/.github/workflows/secret-scanner.yml b/.github/workflows/secret-scanner.yml
index 23a668d..fa6eb1f 100644
--- a/.github/workflows/secret-scanner.yml
+++ b/.github/workflows/secret-scanner.yml
@@ -1,8 +1,13 @@
-# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
-# This workflow is managed by gh actions-lock.
-# This workflow is managed by gh actions-lock.
-# Prevention workflow - scans for hardcoded secrets before they reach main
+# Prevention workflow - scans for hardcoded secrets before they reach main.
+#
+# Calls the estate's shared secret scanner (gitleaks + rust-secrets +
+# shell-secrets). The job key MUST stay `scan`: the estate-wide
+# Secret-Scan-Floor ruleset requires the check context `scan / gitleaks`.
+#
+# No `secrets:` line, deliberately: the reusable references no secrets
+# (gitleaks runs as a checksum-verified binary, not gitleaks-action), so
+# `secrets: inherit` would only hand it every repo and org secret (CWE-250).
 name: Secret Scanner
 
 on:
@@ -10,10 +15,6 @@ on:
   push:
     branches: [main]
 
-# Estate guardrail: cancel superseded runs so re-pushes / rebased PR
-# updates do not pile up queued runs against the shared account-wide
-# Actions concurrency pool. Applied only to read-only check workflows
-# (no publish/mutation), so cancelling a superseded run is always safe.
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
@@ -22,63 +23,5 @@ permissions:
   contents: read
 
 jobs:
-  trufflehog:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v6.0.2
-        with:
-          fetch-depth: 0  # Full history for scanning
-
-      - name: TruffleHog Secret Scan
-        uses: trufflesecurity/trufflehog@v3.93.8
-        with:
-          # The v3 action injects --fail automatically on pull_request events.
-          # Passing --fail here triggers "flag 'fail' cannot be repeated".
-          extra_args: --only-verified
-
-  gitleaks:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v6.0.2
-        with:
-          fetch-depth: 0
-
-      - name: Gitleaks Secret Scan
-        uses: gitleaks/gitleaks-action@v2.3.9
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-  # Rust-specific: Check for hardcoded crypto values
-  rust-secrets:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v6.0.2
-
-      - name: Check for hardcoded secrets in Rust
-        run: |
-          if ! find . -name Cargo.toml -not -path './target/*' -print -quit | grep -q .; then
-            echo 'No Cargo.toml found — skipping Rust secrets check'
-            exit 0
-          fi
-          # Patterns that suggest hardcoded secrets
-          PATTERNS=(
-            'const.*SECRET.*=.*"'
-            'const.*KEY.*=.*"[a-zA-Z0-9]{16,}"'
-            'const.*TOKEN.*=.*"'
-            'let.*api_key.*=.*"'
-            'HMAC.*"[a-fA-F0-9]{32,}"'
-            'password.*=.*"[^"]+"'
-          )
-
-          found=0
-          for pattern in "${PATTERNS[@]}"; do
-            if grep -rn --include="*.rs" -E "$pattern" src/; then
-              echo "WARNING: Potential hardcoded secret found matching: $pattern"
-              found=1
-            fi
-          done
-
-          if [ $found -eq 1 ]; then
-            echo "::error::Potential hardcoded secrets detected. Use environment variables instead."
-            exit 1
-          fi
+  scan:
+    uses: hyperpolymath/standards/.github/workflows/secret-scanner-reusable.yml@74d2f66f575246cf6e313ae7775f44df6e097ff2